JEE Main · 2023 · 25 Jan 2023 · Shift 1 · Mathematical Reasoning *

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The statement is
  1. (A)equivalent to
  2. (B)a tautology✓ Correct
  3. (C)equivalent to
  4. (D)a contradiction

Answer: (B)

Solution

Whenever is true, is true, so is also true; the implication can never have a true antecedent with a false consequent. Equivalently, , which is always true. The statement is a tautology.

JEE Main · 2023 · 25 Jan 2023 · Shift 1 · Single correct option

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